/**
 * Per-request/job context, propagated through the whole call stack via AsyncLocalStorage.
 * Packages extend it via module augmentation:
 *
 * declare module '@basaltkit/core' {
 *   interface RequestContext {
 *     tenant?: { id: string }
 *   }
 * }
 */
export interface RequestContext {
    requestId?: string;
    correlationId?: string;
    [key: string]: unknown;
}
/** Returns the active context. Throws ContextUnavailableError outside of a scope. */
export declare function ctx(): RequestContext;
/** Returns the active context or undefined — for code that needs a fallback. */
export declare function tryCtx(): RequestContext | undefined;
/** Runs `fn` with the given context active (including across awaits and callbacks). */
export declare function runWithContext<T>(context: RequestContext, fn: () => T): T;